Upgrade your existing lighting or add a distinctive finishing touch to any table lamp with these designer lamp finials. Crafted from polished, split ammonite fossils. Ammonites went extinct over 65 million years ago, but were recorded in the fossil record up to 400 million years ago. You will receive the exact finials pictured, measuring 3 3/8" tall and 2 1/8" across. The knurled chrome finial base(s) will fit a standard-size lamp harp with a 1/4" stem. These bases feature slate grey Chromatic Knurl; a hand-painted touch of color to their crosshatch grips.